Fatigue performance testing method for 3D printing forming parts

Abstract

The invention discloses a fatigue performance testing method for 3D printing forming parts. The method comprises the following steps: 1, employing the same 3D printing part to print 35 3D printing forming parts with the same model, and enabling every seven 3D printing forming parts to form a group for label storage; 2, carrying out a mechanical property test in a temperature control box, adjustingthe temperature of the temperature control box to 0 DEG C, carrying out a damage stress performance test on the first 3D printing forming part of the first group by using a press machine, and recording after obtaining result data; and 3, the second 3D printing forming part in the first set is placed in a tensile machine in a temperature control box, the two clamps are used for opposite pulling, opposite pulling tensile strength data are obtained, the angle between the clamps and the clamping position of the printing part are changed, and multi-angle tensile strength data are recorded. The experimental data obtained by the method is comprehensive, a user can conveniently use the experimental data as a reference for selective application when a 3D printing forming part is put into use in the later period, and the auxiliary significance is high.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for testing the fatigue performance of 3D printing formed parts. Background technique [0002] With the rapid development of social economy, 3D printing technology is more and more widely used. 3D printing (3DP) is a kind of rapid prototyping technology, also known as additive manufacturing. 3D printing is usually realized by digital technology material printers. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and others. [0003] However, the existing fatigue...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for testing the fatigue performance of 3D printed parts, so as to solve the problems that the fatigue test method of the existing 3D printed products proposed in the above-mentioned background technology is relatively simple, and the parameters obtained by the product are not detailed enough.

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